Abstract
Background
The morphology of the major papilla affects the difficulty of endoscopic retrograde cholangiopancreatography (ERCP), but no associations with adverse events have previously been established. We aimed to assess whether papillary morphology predicts ERCP adverse events.
Methods
A retrospective analysis was performed of a prospective registry of patients undergoing ERCP for biliary indications. The primary outcome was post-ERCP pancreatitis (PEP), with secondary outcomes including other adverse events and procedural outcomes such as inadvertent pancreatic duct cannulation, cannulation time, and attempts. Papillae were classified as normal (Type I), small or flat (Type II), bulging (Type IIIa), pendulous (Type IIIb), creased (Type IV), or peri-diverticular (Type D). Outcomes were ascertained prospectively at 30 days from index procedures.
Results
A total of 637 patients with native papillae were included. Compared to Type I papillae, Type II and Type IIIb papillae were associated with PEP, with adjusted odds ratios (AOR) of 7.28 (95% confidence intervals, CI, 1.84–28.74) and 4.25 (95% CI 1.26–14.32), respectively. Type II and IIIb papillae were associated with significantly longer cannulation times by 5.37 (95% CI 2.39–8.35) and 4.01 (95% CI 1.72–6.30) minutes, respectively. Type IIIb papillae were associated with lower deep cannulation success (AOR 0.17, 95% CI 0.06–0.48).
Conclusion
Papillary morphology is an important factor influencing both ERCP success and outcomes. Understanding this is key for managing intraprocedural approaches and minimizing adverse events.
Prospective registry registration
Clinicaltrials.gov identifier NCT04259580.
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adapted from Haraldsson et al. [10]. Type I: normal—no distinctive features. Type II: flat/small—diameter less than 3 mm, or approximately 9 Fr. Type IIIa: protruding/bulging—large intraduodenal portion with extrusion into the lumen. Type IIIb: pendulous/redundant—several hooding folds or with caudal orientation of biliary orifice. Type IV: creased/ridged—ductal mucosa extending distally along a crease/ridge. Type D: involved with a periampullary diverticulum
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Abbreviations
- ASGE:
-
American Society for Gastrointestinal Endoscopy
- CI:
-
Confidence intervals
- CReATE:
-
Calgary registry for advanced and therapeutic endoscopy
- DOAC:
-
Direct oral anticoagulant
- ERCP:
-
Endoscopic retrograde cholangiopancreatography
- NKP:
-
Needle-knife papillotomy
- NSAID:
-
Non-steroidal anti-inflammatory drug
- PD:
-
Pancreatic duct
- PEP:
-
Post-ERCP pancreatitis
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NB Hershfield Chair in Therapeutic Endoscopy, University of Calgary.
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NF and RM conception and design; All authors analysis and interpretation of the data; RM and NF drafting of the article; All authors critical revision of the article for important intellectual content; All authors final approval of the article.
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Dr. Mohamed is a consultant for Boston Scientific. Dr. Elmunzer is a consultant for Takeda Pharmaceuticals. Dr. Keswani is a consultant for Boston Scientific and Motus GI. Dr. Wani is a consultant for Boston Scientific and Medtronic. Dr. Forbes is a consultant for Boston Scientific, is on the speakers’ bureau for Pentax Medical, and has received unrelated funding from Pentax Medical. All disclosures are unrelated to this work. Mr. Lethebe, Dr. Gonzalez-Moreno, Dr. Kayal, Dr. Bass, Dr. Cole, Dr. Turbide, Ms. Chau, Ms. Koury, Dr. Brenner, Dr. Hilsden, and Dr. Heitman have no potential conflicts of interest or financial ties to disclose.
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Mohamed, R., Lethebe, B.C., Gonzalez-Moreno, E. et al. Morphology of the major papilla predicts ERCP procedural outcomes and adverse events. Surg Endosc 35, 6455–6465 (2021). https://doi.org/10.1007/s00464-020-08136-9
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DOI: https://doi.org/10.1007/s00464-020-08136-9